arch: conditionally define smp_{mb,rmb,wmb}

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That way arches can define the minimal versions and still #include
asm-generic for defaults (vs. defining defaults in arch code)

See new barrier.h in arc for usage !

Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>

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Vineet Gupta 2015-03-11 21:42:02 +05:30

parent 2576c28e3f

commit 470c27e469

1 changed files with 25 additions and 0 deletions

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include/asm-generic/barrier.h

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